Sarah Butler

Managing Director


San Francisco
Tel: +1 415 291 1022
Fax: +1 415 291 1020

Email: sarah.butler@nera.com
vCard: Download


MA in applied sociology, Temple University
MA in philosophy, Trinity College, Dublin, Ireland
BA in sociology and history, with Honors, Wellesley College


Ms. Butler is an expert in survey research, sampling, market research, statistical analysis, and database analysis. She has applied her expertise in a wide range of projects and litigation cases. In the area of intellectual property, she has focused on survey research and analysis related to trademarks, patents, and false advertising including surveys to establish likelihood of confusion, secondary meaning, and dilution. In the antitrust area, she has designed and evaluated surveys offered to estimate market shares and as evidence of cross shopping behaviors. She has also reviewed secondary market research, with a focus on evaluating its reliability as evidence in antitrust analyses. In antitrust, as well as the areas of water and the environment, Ms. Butler has designed and evaluated complex willingness to pay and hypothetical choice surveys.

In mass torts, her experience includes asbestos, tobacco, and pharmaceuticals. She has worked extensively with large databases of claims files to generate invoices, estimate future liabilities, and calculate policy shares for insurer liabilities. Ms. Butler has also examined demographic and epidemiological data for pharmaceutical litigation. She has conducted surveys of consumers, physicians, and IT professionals, and has designed samples using insurance records, legal documents, real estate transactions, and radio play lists.

Prior to joining NERA, Ms. Butler worked in market research, conducting survey research, focus groups, and in-depth interviews.

Title Type Author
A Tale of Two Cups: Acquired Distinctiveness and Survey Evidence Before the TTAB Published Article Sarah Butler and Healey Whitsett
Survey Response Bias and the ‘Privacy Paradox’ Published Article Sarah Butler, Dr. Garrett Glasgow, and Dr. Samantha Iyengar
The Value of Non-Personally Identifiable Information to Consumers of Online Services:... Published Article By Dr. Garrett Glasgow and Sarah Butler
Damages Based On The Intrinsic Value Of Privacy? Published Article By Dr. Garrett Glasgow and Sarah Butler
Pharmacy Practice: A Report on Pharmacists' Use of Printed Package Inserts Report Dr. Sarah Butler
The Use Of Statistical Sampling Post-Duran Published Article By Sarah Butler
The Value of Personal Information to Consumers of Online Services: Evidence from a Di... Study By Sarah Butler and Dr. Garrett Glasgow
Survey Evidence in False Advertising Cases Published Article By Sarah Butler
Meeting The New Standard For Reasonable Royalties Published Article By Sarah Butler et al.
The Use of Surveys in Litigation: Recent Trends Working Paper By Sarah Butler and Dr. Kent Van Liere